PB2456: SURVIVAL OF MULTIPLE MYELOMA PATIENTS YOUNGER AND OLDER THAN 60 YEARS AFTER AUTOLOGOUS HEMATOPOIETIC STEM CELL TRANSPLANTATION - Ivan Kostroma; Ruzilja Sabitova; Zhanna Sidorova; Victoria Yudina; Stanislav Bessmeltsev; Sergey Sidorkevitch; Sergey Gritsaev (HemaSphere, 2023)